NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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NIST IR 7298 Revision 1, Glossary of Key Information Security Terms The analysis of patterns in communications for the purpose of gaining intelligence about a system or its users. It does not require examination of the content of the communications, which may or may not be decipherable. For example, an adversary may be able to detect a signal from a reader that could enable it to infer that a particular activity is occurring (e.g., a shipment has arrived, someone is entering a facility) without necessarily learning an identifier or associated data. SOURCE: SP 800-98 Gaining knowledge of information by inference from observable characteristics of a data flow, even if the information is not directly available (e.g., when the data is encrypted). These characteristics include the identities and locations of the source(s) and destination(s) of the flow, and the flow's presence, amount, frequency, and duration of occurrence. SOURCE: CNSSI-4009 Traffic Encryption Key (TEK) – Key used to encrypt plain text or to superencrypt previously encrypted text and/or to decrypt cipher text. SOURCE: CNSSI-4009 Traffic Padding – Generation of mock communications or data units to disguise the amount of real data units being sent. SOURCE: CNSSI-4009 Traffic-Flow Security (TFS) – Techniques to counter Traffic Analysis. SOURCE: CNSSI-4009 Training (Information Security) – Training strives to produce relevant and needed (information) security skills and competencies. SOURCE: SP 800-50 Training Assessment – An evaluation of the training efforts. SOURCE: SP 800-16 Training Effectiveness – A measurement of what a given student has learned from a specific course or training event. SOURCE: SP 800-16 Pg 194
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Training Effectiveness Evaluation – Information collected to assist employees and their supervisors in assessing individual students’ subsequent on-the-job performance, to provide trend data to assist trainers in improving both learning and teaching, and to be used in return-on-investment statistics to enable responsible officials to allocate limited resources in a thoughtful, strategic manner among the spectrum of IT security awareness, security literacy, training, and education options for optimal results among the workforce as a whole. SOURCE: SP 800-16 Tranquility – Property whereby the security level of an object cannot change while the object is being processed by an information system. SOURCE: CNSSI-4009 Transmission – The state that exists when information is being electronically sent from one location to one or more other locations. SOURCE: CNSSI-4009 Transmission Security – (TRANSEC) Measures (security controls) applied to transmissions in order to prevent interception, disruption of reception, communications deception, and/or derivation of intelligence by analysis of transmission characteristics such as signal parameters or message externals. Note: TRANSEC is that field of COMSEC which deals with the security of communication transmissions, rather than that of the information being communicated. SOURCE: CNSSI-4009 Trap Door – 1. A means of reading cryptographically protected information by the use of private knowledge of weaknesses in the cryptographic algorithm used to protect the data. Transport Layer Security (TLS) – 2. In cryptography, one-to-one function that is easy to compute in one direction, yet believed to be difficult to invert without special information. SOURCE: CNSSI-4009 An authentication and security protocol widely implemented in browsers and Web servers. SOURCE: SP 800-63 Triple DES – An implementation of the Data Encryption Standard (DES) algorithm that uses three passes of the DES algorithm instead of one as used in ordinary DES applications. Triple DES provides much stronger encryption than ordinary DES but it is less secure than AES. SOURCE: CNSSI-4009 Pg 195
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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